Vehicle road gradient calculating method and system
A computing method and computing system technology, applied in the field of automotive electronic control, can solve problems such as safety risks and road slope errors, and achieve the effects of enhancing overall safety performance, reducing wear and improving safety performance
Active Publication Date: 2019-01-29
ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKING SYST CO LTD
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Problems solved by technology
However, the existing research still has deficiencies in the verification of acceleration reliability, which may lead to errors in the real-time calculated road slope and bring safety risks to automobile braking.
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[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details being omitted, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solution...
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The invention discloses a vehicle road gradient calculating method and system. The vehicle road gradient calculating method comprises the following steps of obtaining a first accelerated speed of a vehicle during moving; obtaining a second accelerated speed of the vehicle during moving; correspondingly comparing the first accelerated speed and the second accelerated speed with a first acceleratedspeed preset threshold and a second accelerated speed preset threshold; and if the first accelerated speed and the second accelerated speed are both less than the first accelerated speed preset threshold and the second accelerated speed preset threshold, calculating according to the first accelerated speed to obtain a vehicle road gradient. According to the vehicle road gradient calculating methodand system, the values of the first accelerated speed, the second accelerated speed and the accelerated speed preset thresholds are judged first, and then the road gradient during the moving of the vehicle is accurately calculated according to the first accelerated speed. According to different road gradients obtained through accurate calculation, sectional parking actions are carried out by using different parking forces so that the wear of a brake pad can be reduced, the service life of the brake pad can be prolonged, and the integral safety performance of a vehicle control system can be improved.
Description
technical field [0001] The invention discloses a vehicle road surface slope calculation method and system, which belong to the technical field of automotive electronic control. Background technique [0002] With the rapid development of the automobile industry and the continuous improvement of people's living standards, people began to pursue higher automobile safety and reliability, which made the automobile industry continue to develop in the direction of humanization, electronics and intelligence. Modern vehicle control systems contain many subsystems, and the control effect of the vehicle not only depends on the vehicle controller, but also is closely related to the collected vehicle parameter information. [0003] The Electrical Park Brake (EPB) system is a technology that uses electronic control to realize parking and parking braking. It integrates the temporary braking during driving and the long-term parking braking after parking. Together. The EPB system can measu...
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IPC IPC(8): B60W40/06
CPCB60W40/06B60W2710/18B60W2710/182
Inventor 陈启生其他发明人请求不公开姓名
Owner ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKING SYST CO LTD